Phantom of Yubel 
76
Level 9 DARK/Fiend Fusion Effect0 ATK / 0 DEF
1 "Yubel" monster + 1 Fiend monster with 0 ATK/DEF
Must be Special Summoned (from your Extra Deck) by shuffling the above cards from your hand, field, and/or GY into the Deck/Extra Deck. Cannot be used as Fusion Material. Cannot be destroyed by battle, also you take no damage from battles involving this card. When your opponent activates a monster effect (Quick Effect): You can Tribute this card; the activated effect becomes "Your opponent destroys 1 "Yubel" monster in their hand, Deck, or field". You can only use this effect of "Phantom of Yubel" once per turn.
Spirit of Yubel
Level 10 DARK/Fiend Effect0 ATK / 0 DEF
Cannot be destroyed by battle, also you take no damage from battles involving this card. If this card is destroyed: You can Special Summon 1 of your "Yubel" that is banished or in your hand, Deck, or GY. You can only use each of the following effects of "Spirit of Yubel" once per turn. When an opponent's monster declares an attack: You can Special Summon this card from your hand. If this card is Special Summoned: You can add to your hand or Set 1 Spell/Trap from your Deck that mentions "Yubel".
Yubel
Level 10 DARK/Fiend Effect0 ATK / 0 DEF
This card cannot be destroyed by battle. You take no Battle Damage from battles involving this card. Before damage calculation, when this face-up Attack Position card is attacked by an opponent's monster: Inflict damage to your opponent equal to that monster's ATK. During your End Phase: Tribute 1 other monster or destroy this card. When this card is destroyed, except by its own effect: Its owner can Special Summon 1 "Yubel - Terror Incarnate" from their hand, Deck, or Graveyard.
Yubel - Terror Incarnate
Level 11 DARK/Fiend Effect0 ATK / 0 DEF
Cannot be Normal Summoned or Set. Must be Special Summoned by "Yubel", and cannot be Special Summoned by other ways. This card cannot be destroyed by battle. You take no Battle Damage from battles involving this card. Before damage calculation, when this face-up Attack Position card is attacked by an opponent's monster: Inflict damage to your opponent equal to that monster's ATK. During your End Phase: Destroy all other monsters on the field. When this face-up card leaves the field: You can Special Summon 1 "Yubel - The Ultimate Nightmare" from your hand, Deck, or Graveyard.
Yubel - The Loving Defender Forever
Level 12 DARK/Fiend Fusion Effect0 ATK / 0 DEF
1 "Yubel" monster + 1+ Effect Monsters on the field
If this card is Fusion Summoned: You can inflict 500 damage to your opponent for each material used. You can only use this effect of "Yubel - The Loving Defender Forever" once per turn. Cannot be destroyed by battle or card effects, also you take no battle damage from battles involving this card. At the end of the Damage Step, if this card battled an opponent's monster: Inflict damage to your opponent equal to that opponent's monster's ATK, and if you do, banish that monster.
Yubel - The Ultimate Nightmare
Level 12 DARK/Fiend Effect0 ATK / 0 DEF
Cannot be Normal Summoned or Set. Must be Special Summoned by "Yubel - Terror Incarnate", and cannot be Special Summoned by other ways. This card cannot be destroyed by battle. You take no Battle Damage from battles involving this card. At the end of the Damage Step, if this face-up Attack Position card battles an opponent's monster: Inflict damage equal to that monster's ATK to your opponent, also destroy that monster.